When someone rubs a penis and or dildo up and down on a person's six pack.
That man's abs are perfect for the cheese grater.
When you repeatedly rub your balls on a chicks face so fast that your pubes fall off
Callum: did you cheese grater that bitch today bro?
George: Fuck yeah.
thw worst type of porn/hentai, it's basically vore using a cheese grater
"I can't believe I got off to Cheese grater hentai... the fuck is wrong with me"
"my friend sent me Cheese grater porn... I think I'm going to do it this time." (loads gun)
A sexual position in which one party is the cheese and the other party is the grater.
Sarah: "I was just with Chelsea the other night..."
James: "Dude, awesome, did she give you the Cheese Grater?"